Dormer Pramet A110 4.00 mm HSS ST STRAIGHT SHANK LONG SERIES DRILL DIN 340

The Dormer Pramet A110 4.00 mm HSS Long Series Drill DIN 340 is built for precision, endurance, and reach. Designed as a straight‑shank drill with a conventional 118° point, it delivers a strong cutting edge that’s easy to re‑grind, making it a cost‑effective choice for everyday metalworking tasks. This long series drill follows the DIN 340 standard, ensuring consistent performance across setups and machines.

Key advantages you’ll notice in use

• Extended reach for deep holes — with an overall length of 119 mm and a flute length of 78 mm, this long series drill is purpose‑built for drilling deep holes and accessing tight spaces without sacrificing rigidity.
• Steam oxide finish (steam tempered) — the surface treatment helps prevent workpiece material from sticking to the cutting edge, promoting smoother starts and cleaner holes.
• Versatile material compatibility — crafted from premium HSS, it’s suitable for drilling a wide range of metals, including steel, aluminium, and stainless steel, making it a reliable choice across multiple projects.
• Reliable point geometry — the 118° conventional point provides strength and a regrindable tip, which translates to long service life and lower tooling costs.
• Straight shank for broad compatibility — compatible with a wide array of collets and chucks, ideal for both hand‑held and machine drilling.

This A110 long series drill is specifically designed for deep‑hole tasks. It’s commonly used for drilling 6×D and longer hole depths in steel, with reliable performance in a variety of other metals. The combination of long reach, robust HSS core, and a grindable 118° point helps you push through challenging material profiles without frequent tool changes.

What makes this drill stand out

• DIN 340 compliance guarantees standardized sizing and dimensional accuracy for dependable interchangeability with compatible tooling and machines.
• 6×D drilling capability supports efficient deep‑hole work in steel without pecking, improving cycle times and hole quality.
• Versatility across setups – whether you’re using handheld drills or automated machinery, the straight shank and long flute provide consistent performance and control.

Ideal for engineers, machinists, and technicians who frequently need to reach deeper into workpieces or access concealed drill locations, the A110 4.00 mm drill helps you complete assemblies faster with fewer tool changes and reliable hole quality.